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Gates 12358 HVAC Heater Hose - Auxiliary Heater Pipe-2 To Auxiliary Heater Pipe-3
Overview of Gates Molded Heater Hose 12358 for Toyota Sienna
The Gates Molded Heater Hose 12358 is designed specifically for HVAC systems in Toyota Sienna models. Constructed from durable EPDM material, this molded heater hose ensures reliable performance and a precise fit for your vehicle's heating system.
- Made from high-quality EPDM rubber for heat and chemical resistance
- Centerline length of 231 mm (9.09 inches) for exact fitment
- Consistent inside diameter of 0.62 inches (16 mm) on both ends
- Molded design for secure, leak-free connections
- Compatible with Toyota Sienna HVAC systems
Detailed Product Description and Specifications
The Gates Molded Heater Hose 12358 is engineered to meet the specific HVAC requirements of Toyota Sienna vehicles. The hose features a molded construction that eliminates the need for additional fittings, reducing potential leak points. Both ends have an inside diameter of 0.62 inches (16 mm), ensuring compatibility with OEM connections. With a centerline length of 231 mm (9.09 inches), this hose fits precisely within the heating system layout. The EPDM material offers excellent resistance to heat, ozone, and automotive fluids, making it suitable for long-term use in the vehicle's HVAC system.
This hose does not include quick connect fittings or branches, maintaining a straightforward design focused on durability and fitment accuracy.
Applications and Common HVAC Issues Addressed
- Replacement of worn or cracked heater hoses in Toyota Sienna HVAC systems
- Resolving coolant leaks that affect cabin heating performance
- Restoring proper coolant flow to the heater core
- Preventing overheating issues related to faulty heater hoses
- Maintaining HVAC system integrity for consistent vehicle comfort
Installation Notes and Tips
When installing the Gates Molded Heater Hose 12358, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose orientation matches the original part to maintain proper coolant flow. Use appropriate clamps to secure the hose ends and check for leaks after installation. The molded design simplifies installation by providing a precise fit without the need for additional adapters.
Quality Assurance and Warranty Information
Gates is a recognized manufacturer of automotive hoses, and the Molded Heater Hose line is produced to meet OEM specifications. The EPDM material and molded construction contribute to the hose's durability and resistance to common HVAC system stresses. While specific warranty details are not provided, Gates products typically adhere to industry standards for quality and reliability.
| Brand | Gates |
| Part Number | 12358 |
| Position | Molded Heater Hose, Auxiliary Heater Pipe-2 To Auxiliary Heater Pipe-3 |
| Material | Epdm |
| End 1 Inside Diameter | .62 |
| End 1 Inside Diameter | 16 |
| End 2 Inside Diameter | .62 |
| End 2 Inside Diameter | 16 |
| Centerline Length | 231 |
| Centerline Length | 9.09 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Centerline Length (in) | 9.09 |
| Centerline Length (mm) | 231 |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2016 | Toyota | Sienna | 3.5L | V6 | GAS | Auxiliary Heater Pipe-2 To Auxiliary Heater Pipe-3 | Molded Heater Hose |
| 2015 | Toyota | Sienna | 3.5L | V6 | GAS | Auxiliary Heater Pipe-2 To Auxiliary Heater Pipe-3 | Molded Heater Hose |
| 2014 | Toyota | Sienna | 3.5L | V6 | GAS | Auxiliary Heater Pipe-2 To Auxiliary Heater Pipe-3 | Molded Heater Hose |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.